E8
Roidmi
Battery Temperature Sensor Error
Vacuum shows E8 or a temperature icon and will not operate until cooled.
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Possible Causes
Battery pack overheated from heavy use, faulty NTC temperature sensor in the battery, charging in a very hot or very cold environment, poor thermal contact inside the battery pack.
How to Fix / Troubleshooting
Safety first: Remove the battery from the vacuum.
- Allow the battery to cool at room temperature (20–25°C) for at least 30 minutes, away from direct sunlight or heaters.
- Do not place the battery in a refrigerator or freezer; rapid temperature changes can damage cells.
- After cooling, reinstall the battery and test. If E8 appears immediately on a cool battery, the internal temperature sensor is likely faulty.
- Replace the complete battery pack. Do not attempt to open the battery casing or bypass the sensor.
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Repair Difficulty
Easy
2/5
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